Thank you everyone for your kind comments.
Silv yes it is great when the science comes into it. I am reading my wife's astronomy text book called "Universe" 8th edition and explains it rather well.
I usually do about 1000 images and use "Virtual Dub" to create a video.
The weather was rather hit and miss so I didnt bother, but the images I did take (about 20) did show a large pillar dancing across the sky.
Erick thank you for the fantastic link too
Regards Paul
